I agree with all the subsequent discussion, but I would add that I disagree that,

"this kind of comment about the appearance of a website should be done by asking directly and nicely to the author"

Given the site has been posted to a public forum, it's useful, both for the author and for other designers, to get a feel of how the community (read into that what you will) feels about a design, rather than simply one individual's private perception.

I also agree, however, that I personally don't see it as a major issue (I've included this statement to validate my original point - how meta...)